[PATCH 1/3] usb: gadget: aspeed: read vhub config from of_device_id

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Feb 11 19:50:42 AEDT 2020

On Mon, 2020-02-10 at 11:07 -0800, Tao Ren wrote:
> > > This looks generally okay. We should wait for Ben's ack before
> > > applying.
> > 
> > Shouldn't we instead have DT fields indicating those values ?
> May I ask why we prefer adding dt fields (such as "aspeed,vhub-max-ports"
> and "aspeed,vhub-max-endpoints") instead of assigning these values based
> on aspeed family? For example, is it to allow users to set a smaller
> number of ports/endpoints?

It's not a strong drive but it makes it more convenient to add support
to newer revisions if the only differences are those numbers.
> > Also we should add a DT representation for the various ID/strings of
> > the hub itself so manufacturers can customize them.
> Sure. I will add DT nodes for vendor/product/device IDs/strings. As it's
> not directly related to ast2600-support, shall I handle it in a separate
> patch? Or I can include the patch in this patch series?

Separate. Thanks !


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